Air outlet housing of range hood

Abstract

The invention discloses an air outlet housing of a range hood. The air outlet housing comprises a housing body and a valve block assembly arranged at an air outlet of the housing body, wherein the valve block assembly comprises a rotary shaft which is arranged along the symmetry axis of the air outlet and two symmetrical valve blocks which are hinged on the rotary shaft; the gross area of the two valve blocks is matched with the area of the air outlet, and the valve blocks can rotate around the rotary shaft to open or close the air outlet; the air outlet housing is characterized in that a linking assembly for synchronously linking the two valve blocks is arranged below the valve block assembly. The air outlet housing of the range hood not only can effectively prevent a problem that the valve blocks cannot be completely opened or simultaneously opened due to oil-flume adhesion, but also can enable the valve blocks on the air outlet housing to simultaneously open or close, thereby ensuring an oil fume suction effect of the range hood and reducing the noise of the range hood.

Description

technical field [0001] The invention relates to an air outlet cover of a range hood. Background technique [0002] The buildings used in today's family living are generally public flues. The oil fumes discharged from the range hoods of each household enter the public flue from the range hoods and are discharged from the top of the house. If the air outlet of the range hoods is not tightly sealed , it will cause the fumes from the lower-level users to enter the rooms of the upper-level residents during the discharge process, or when the wind blows or the air pressure is low, the oily fumes discharged from the upper-level residents will also enter the house from the exhaust port of the range hood of the lower-level residents. In this case, there will be a phenomenon of gas and smoke between the airways. Therefore, the general range hood is equipped with an air outlet cover at the air outlet of the range hood, and a valve plate is arranged in the air outlet cover. The valve pl...

AI Technical Summary

Problems solved by technology

However, the cost of the electromagnet in this structure is high and the structure is complicated. The electromagnetic device is easily damaged in the oily environment. If the valve piece with a smaller degree of shell bonding is opened first, the gas pressure in the air outlet hood will be greatly reduced instantly, and the other valve piece will be difficult to open again. Although this technology adds a structure to assist in opening the valve piece, the two If the valves are not opened synchronously, there is still a hidden danger that one of the valves cannot be opened.

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